By using a mixer to down-convert the high frequency components of signal, digital bandwidth interleaving (DBI) technology can simultaneously increase sampling rate and system, compared time-interleaved hybrid filter bank. However, software hardware classical architecture are too complicated, which also leads poor performance. In particular, pilot tone used synchronize analog local oscillators (...

This brief proposes a fully dynamic discrete-time ${\Delta }{\Sigma }$ ADC using closed-loop two-stage cascoded floating inverter amplifiers (FIA). The proposed FIA uses non-cascoded as the notation="LaTeX">$1^{\mathrm{ st}}$ stage an...

This paper presents a field-programmable gate array (FPGA)-based digital down converter (DDC) that can reduce the bandwidth from about 70 MHz to 182.292 kHz. The proposed DDC consists of polyphase COordinate Rotation DIgital Computer (CORDIC) processor and multirate filter. advantage CORDIC is process with high sample rate input data produces computational efficient noiseless baseband spectrum....

This paper presents a second-order modulator for audio-band A/D conversion implemented in a 3.3V, 0.5 m, single-poly CMOS process that achieves 98dB peak SINAD and over 100dB SFDR. The design uses a reduced-complexity, mismatch-shaping 33-level DAC and a 33-level ash ADC with digital common-mode rejection and dynamic element matching of comparator o sets. These signal processing innovations, co...

The paper presents a new device for analog optical links, the balanced electroabsorption modulator, to allow the simultaneous cancellation of laser relative intensity noise, all even-order distortions, and third order intermodulation. The RF photonic link employing the new balanced modulator shows great improvement in the overall link performance with respect to conventional links using a singl...

A S CMOS technologies continue to enjoy the bene ts of aggressive scaling, they become increasingly attractive for use in wireless receivers. Peak device fT 's on the order of 15GHz are available with 0.5 m CMOS devices, making possible CMOS implementations of radio receivers in the 1-2GHz frequency range. One wireless system in this range that is particularly amenable to integration is a Globa...

In the design of hearing aids (HA), real-time speech-enhancement is done. The digital should provide high signal-to-noise ratio, gain improvement and eliminate feedback. generic performance towards different frequencies varies non uniform. Existing noise cancellation speech separation methods drops voice magnitude under environment. HA for frequency response suppression reduce required signal s...

Integrated microwave photonics (MWP) is a fast growing area where high frequency signals are processed in the optical domain, merging key advantages of both and photonic integrated circuits (PICs) technologies including low-loss, reconfigurability, advanced functionality, enhanced stability, reduced footprint. Plenty functionalities have been demonstrated MWP, especially based on spectral shapi...

Given the interest of researchers for wireless communications in electromagnetic (EM) shadow areas, a magnetic field communication has emerged to overcome RF challenges based on permeability characteristics. However, demerit short range. Considering this limitation, we have proposed GMI sensor-based receiver obtain immunity low-frequency noise and high sensitivity extension range previous studi...

Timing-mismatch errors among channels in time-interleaved analog-to-digital converters (TIADCs) greatly degrade the whole performance of system. Therefore, techniques for calibrating timing mismatch are indispensable, and a new fully-digital calibration technique is presented this article. Based on Hilbert filter, modified moving averagers (MMAs) inverse cosine functions, proposed estimation al...